1) what were the disadvantages to using wood and water power? 2) why was the use of coal an improvement on using human, animal, wood or water power for energy?

3)predict- what were the possible positive and negative effects of the use of coal for energy?

1. Over-exploitation of forests has serious environmental effects such as deforestation, destruction of ecosystems and animal habitats, accelerated soil erosion among others.

2. Air pollution occurs from burning of the energy sources.

3. Use can destroy forests or homes through accidental fires.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.